HUMAN IMPACT UNIT7

What are the consequences of deforestation?

• Increased soil erosion

• Increased oxygen

• Decreased biodiversity

• Decreased sunlight

From the following choices, which is the best definition of deforestation?

• adding to the forest

• removing the forest

• polluting the forest

• mapping the forest

Which of the following are ways in which human activity negatively impacts the Earth? Choose all that apply.

• Recycling

• Desertification

• Pollution

• Urbanization

• Changing water flow

Which of the following will most likely contribute to desertification?

• wind turbines

• burning of fossil fuels

• introduction of an invasive species

• removal of vegetation

A Venn Diagram comparing deforestation and urbanization shows overlapping sets with shared and distinct impacts.

• It shows two non-overlapping sets with no commonalities.

• It shows overlapping sets with both shared elements and distinct features.

• It shows multiple disjoint regions with no intersection.

• It depicts one set completely inside another.

When human-made chemicals and garbage find their way into nature and harm the air, soil, and water it is called:

• habitat destruction

• pollution

• desertification

• climate change

Approximately 75 percent of the Earth's surface is covered in water. So why is water considered such a precious resource?

• Each year, more freshwater is being trapped in ice caps located at the North and South Poles.

• The greenhouse effect is causing most of the world's freshwater to be trapped in the atmosphere.

• Only a small fraction of the Earth's water is freshwater available for drinking and irrigation.

• Global warming caused by greenhouse gas emissions will likely cause Earth's oceans to evaporate.

In which of the following ways can Albert best reduce the resources he currently consumes?

• Subscribe to a daily rather than a weekly newspaper.

• Use an organic rather than synthetic fertilizer in his garden.

• Use plastic grocery bags instead of paper.

• Ride his bike to work instead of driving his car.

Human activity has the greatest effect on global climate change when it results in which of the following?

• The gradual rise in sea level reduces the available land area.

• Increased concentrations of carbon dioxide in the atmosphere.

• A decrease in the number and diversity of species in tropical rainforests.

• The creation of the genetically modified plant and animal species.

What is the main purpose of a scientific investigation?

• To collect random observations

• To answer a specific question or solve a problem

• To test a hypothesis without gathering data

• To prove that a theory is correct